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Gary S. Allen, MD, MMM, FACS

Thoracic and Cardiovascular Surgeon

* Member of the AdventHealth Medical Group

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Gary S. Allen, MD, MMM, FACS, is a board-certified cardiothoracic surgeon who specializes in treating patients with various disorders of the lungs, heart and great vessels. He is specially trained in minimally invasive techniques for performing aortic valve, mitral valve and lung surgery. Dr. Allen has vast experience in performing beating heart (off pump) coronary artery bypass graft surgery, repair of ascending aortic aneurysm and surgical correction for atrial fibrillation. A recipient of the Ralph D. Alley Prize for Cardiothoracic Surgery and other honors, Dr. Allen is a leader in his field who provides cardiac and thoracic surgical services at AdventHealth Waterman.

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Medical School 

Albany Medical College


Thoracic Surgery (Cardiothoracic Vascular Surgery) - (American Board of Thoracic Surgery)
Surgery - General - (The University of Texas Health Science Center at Houston)
University of Texas Health Science Center.

Board Certifications

Thoracic Surgery (Cardiothoracic Vascular Surgery) - (The American Board of Thoracic Surgery)